Blake



' (No Model.)

H. BLAKE.

MOTIVE POWER. N0. 283,063. Patented Aug. 14, 1883.

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UNITED STATES PATENT" OFFICE.

HARRY BLAKE, OF CHICAGO, ILLINOIS, ASSICrNOR TO HIMSELF AND C. E.

BLAKE, OF SAME PLACE.

POWER.

SPECIFICATION forming part of Letters Patent No. 283,063, dated August14, 1883.

Application filed February 5, 1883. (No model.) I J To aZZ whom it 17mgconcern;

Be it known that I, HARRY BLAKE, of Chicago, in the county of Cook andState of Illinois, have invented new and useful Improvements in MotivePowers, of which the following is a specification, reference being hadto the accompanying. drawings, illustrating the invention, in whichsFigure 1 is a longitudinal sectional elevation of a motive power asapplied to a handcar embodying my invention; Fig. 2, a top or plan viewthereof; Fig. 3, detached parts removed from the complete structure.

The object of thepresent invention is so to improve the mechanismfordriving the wheels of the ordinary hand-car that there shall be theleast possible friction, lost motion, or liability to get out of order,and at the same time to apply the power equally to both trucks in amanner best adapted to the application of human strength. The power isalso designed for driving other mechanisms; and it may be said that itis an improvement on or an advance on the motive power patented to WV.NV. Corey on November 28, 1876, No. 184,761.

The nature of the invention consists in an inverted T-lever, which ateither side actuates two connectingfrods and two levers; also, apitman-rod. The pitman-rod, at either side of the T-lever, respectivelyactuates a crank-sh aft on which is fixed a gear-wheel which meshes intoa pinion on the axle, and consequently when the T-lever has given to itan oscillat ing movementthe wheels are rotated, as the whole ishereinafter fully described and shown. A A represent the frame, and Bthe wheels, of an ordinary hand-car, and C C is the frame which supportsthe shaft of the T-lever J. I To the arms H H, respectively, of thislever is pivoted a connecting-rod, Z, whose lower end is pivoted to alever, F, at d, which,at a, is pivoted to astud, E, attached to theframepiece A. To the middle portion of the lever F is pivoted aconnecting rod, L, whose lower end, at M, is pivoted to a bent lever, G.This last-mentionedilever is journaled to the side frame, A, at b b, andits upper end is pivoted at fto the outer end of a pitman, K K. The

inner end of the pitman is j ournaled to a crankshaft, M, to which isattached a cog-gear, D, which meshes into a pinion, E, on the canaxle'WV.

By an inspection of the drawings it will be seen that the mechanismconnected with one arm, H, of itheT lever is an exact reversecounterpart of the mechanism connected with the other arm, evento thecog-gear, being on opposite sides of the car. .The connecting rods L Zare singlepieces each of metal, but the leverFis formed 'of two pieces,and'the bent lever G operates between them. The pitmen K K are double,the bars of which are .farther apart at their outer ends than where theyare 3 ournaled to the crank-shaft M, whereby one pitmanlmay work insideof the other in theposition shown at Fig. 2. The lever J is pivoted tothe frame C C by means of a shaft,

6, so as to have an oscillating motion lo11gitudinally with the car. I I

Where a greater motion is to be given to the axles W, the dimensions ofthe wheels D E may be changed, and where a greater or less power berequired the arms H and levers G L may have given to them differentproportions withreference to their fulcrums and to where,

the power is applied.

In the foregoing. one application of my improvement has been given, andfrom it a person skilled in theart will readily put it to other uses towhich it I may be adapted.

I claim and desire to secure by Letters Pat-

